Abstract: The tests selected Jinchuang 8, Jinshan 10, Jixing 46 and Zhengdan 958 as experimental material to study the dynamic changes about the content of total nitrogen、phosphorus、potassium of the different maize varieties in the stem, leaf and grains in different growth period. The results showed that the content of total nitrogen and phosphorus were declined in the stem with growth period（tasseling, filling, and maturation period）, the highest content on tasseling period. The amount of total potassium content was highest on tasseling period,and there was a v-shape rise in maturation. the content of total nitrogen、phosphorus、potassium in leaves decreased with growth period. The purity of total nitrogen of grain increased with growth period, it was highest on maturation period. The total content of phosphorus and potassium decreased with growth period. The nitrogen mainly distributed in stem on tasseling and filling period, and the distribution discipline was stemleafgrain on tasseling period,and the distribution discipline was stem grain leaf on filling period. The nitrogen mainly distributed in grain on maturation period and the distribution discipline was grain stem leaf,and the phosphorus primary distributed in gain on the tasseling,filling and maturation period,and the discipline was grain leaf stem. On the tasseling period,the potassium mainly distributed in the leaf,and the law was leaf grain stem; the potassium mainly distributed in grain on filling and maturation period,and the law was grain leaf stem. All of four varieties on each growth period,nitrogen, phosphorus and potassium content in stem of Jixing 46 were the highest.Nitrogen,and phosphorus and potassium content in leaf of Zhengdan 958 were the highest. Nitrogen content in grain of Jixing 46 was the highest,and phosphorus content in grains of Jinshan 10 was the highest, and potassium content in grain of Zhengdan 958 was the highest.